#include<stdio.h>
int main(){
	double f[60];
	int i,j,n;
	f[0]=0;
	f[1]=1;
	for(i=2;i<60;++i){
		f[i]=f[i-1]+f[i-2];
	}
	while(scanf("%d",&n)!=EOF){
		j=0;
		for(i=0;i<60;++i){
			if(n==f[i]){
				j++;
			}
		}
		if(j>0)
		printf("Lucky Day\n");
		else
		printf("Bad Day\n");
	}
	return 0;
}